Figure 3.

 Number of asbestos particles per gram of lung tissue for asbestosis and non‐asbestosis by chest X‐ray. For asbestosis, two patients (11.1%) had <5000 asbestos particles; 14 (77.8%) had more than 10 000 particles; while 10 had more than 50 000 particles (55.6%) which means heavy asbestos exposure. On the other hand, for non‐asbestosis, 31 patients had more than 5000 particles and 14 had <1000 particles. For the patients with non‐asbestosis, no particular pattern in number of asbestos particles could be observed.